/// <summary>
/// Unity editor function to visualize the field of view in Scene view.
/// </summary>
private void OnSceneGUI()
{
    // Casts the target as an 'Interacting' object to access its properties
    Interacting interacting = (Interacting)target;

    // Draws two fields of view with different radii, angles, and colors
    DrawFieldOfView(interacting, interacting.viewRadius,

    interacting.viewAngle,

    Color.red); // Big circle

    DrawFieldOfView(interacting, interacting.viewRadius2,

    interacting.viewAngle2,

    Color.blue); // Small circle
}

/// <summary>
/// Draws an arc and boundary lines representing the field of view based on radius and angle.
/// </summary>
/// <param name="interacting">Instance of Interacting, providing position and direction.</param>
/// <param name="viewRadius">Radius of the field of view (distance from the origin).</param>
/// <param name="viewAngle">Angle of the field of view in degrees.</param>
/// <param name="wireColor">Color for the field of view outline.</param>
public void DrawFieldOfView(Interacting interacting, float viewRadius, float viewAngle, Color wireColor)
{
    // Set the color for the FOV visualization lines
    Handles.color = wireColor;

    // Draws a circular arc at the object's position, indicating the reach

    of the view radius
    Handles.DrawWireArc(
        interacting.transform.position, // Origin of the arc
        Vector3.up,                     // Axis of rotation (upward in

                                        world space)
        Vector3.forward,                // Starting direction of the arc
        360,                            // Full circle for the arc
        viewRadius                      // Radius length
    );

    // Calculates the boundaries of the view angle by converting degrees to

    direction vectors
    Vector3 viewAngleA = interacting.DirFromAngles(-viewAngle / 2, false);

    // Left boundary of the FOV
    Vector3 viewAngleB = interacting.DirFromAngles(viewAngle / 2, false); 

    // Right boundary of the FOV

    // Draws lines from the object's position to the FOV boundary points
    Handles.DrawLine(
        interacting.transform.position,
        interacting.transform.position + viewAngleA * viewRadius
    ); // Left boundary line

    Handles.DrawLine(
        interacting.transform.position,
        interacting.transform.position + viewAngleB * viewRadius
    ); // Right boundary line
}